<!DOCTYPE html>
<html>

<head>
<style>
#header {
    background-color:black;
    color:white;
    text-align:center;
    padding:5px;
}
#nav {
    line-height:30px;
    background-color:#eeeeee;
    height:300px;
    width:100px;
    float:left;
    padding:5px;	      
}
#section {
    width:350px;
    float:left;
    padding:10px;	 	 
}
#footer {
    background-color:black;
    color:white;
    clear:both;
    text-align:center;
   padding:5px;	 	 
}
</style>
</head>

<body>

<div id="header">
<h1 align="center">Attack And Defense</h1>
</div>



<div id="section">
<h2 align="center">欢迎使用网络攻防实训平台</h2>
<h3 align="center">
您此次注册的验证码为
</h3>
<h1 align="center">
<span style="color:deepskyblue">{{code}}</span>
</h1>
<h3 align="center">
3分钟内有效，请及时输入。
</h3>
</div>

</body>
</html>
